User manual ELECTRO-VOICE XCB EDS

[. . . ] Xcb X-ArrayTM Bass System · Single-woofer design equivalent to half of an Xb · Ring Mode Decoupling (RMD)TM provides accurate transient detail · EVX-180B woofer · Unique rear-hinge rigging · Enclosure shell and rigging identical to all of the half-size X-ArrayTM systems Description The X-ArrayTM product line represents important advancements in concert-sound-reinforcement technology. The design goals called for the highest acoustic output capability with the highest fidelity in lightweight, compact enclosures that were easy to array. The development began with a clean sheet of paper and took an integrated approach. The individual loudspeaker drivers, horns, enclosures, rigging hardware and system configurations were designed from the ground up specifically for this high-performance application. [. . . ] When four Xcb systems are jumped from one to another via the input/output connections, the amplifier home-run cable will have two woofers on Pins 1 (for a 4-ohm load) and two woofers on Pins 2 (for a 4-ohm load). Although Pins 3 and 4 are not used by the Xcb systems, they are paralleled on the input panel. This allows an X-ArrayTM MB/ HF box (like the Xcn or Xf ­ which use Pins 1 and 2, but not Pins 3 and 4) to be paralleled with an Xcb, allowing all eight conductors to be used with a single cable run to the amplifiers. Flying the X-ArrayTM Systems The X-ArrayTM loudspeaker systems all utilize the same rigging hardware and have the same structural strength ratings. Thus, different systems may be mixed in an array to achieve the best acoustic results. The rigging system allows for the smallest possible spacing between adjacent enclosures, and utilizes quick-release rigging fittings for fast installation and tear down. When flown, the X-ArrayTM enclosures are linked together by two removable hinges on the rear of the enclosures at the top and bottom. This arrangement enables the enclosures to pivot vertically from the rear corners. The relative vertical angle between adjacent enclosures is adjustable and set by two removable rigging straps on the front of the enclosures at the top and bottom. Both the rear rigging hinges and the front rigging straps are installed when enclosures are sitting on top of one another. For ease of installation of the hinges and straps, the enclosures self align using feet and cups mounted on the top and bottom of the enclosures. The relative horizontal angle between adjacent columns of loudspeakers is set by adjustable grids at the top of the array (or by custom-building attachment supports in permanent-installation applications where grids are not used). The removable proprietary rear rigging hinges utilize all-steel construction, and are secured into a proprietary track assembly on the enclosure (similar to the heavy-duty aircraft L-track). The aluminum track is ex3 truded as a single-piece track/angle-bracket assembly and ties into the top, bottom and rear of the enclosure. Metal bars inside the enclosure tie the top and bottom track/anglebracket assemblies together, minimizing the load applied to the wooden enclosure. The rear extrusion will accommodate the New Haven 32102-2 aircraft-type double-stud locking fitting instead of the hinge for applications requiring a lower strength rating. Architects' and Engineers' Specifications The loudspeaker system shall be a twodriver, slot-loaded, vented-box low-frequency system with a frequency response from 37-200 Hz. The loudspeaker system also shall have one 457-mm (18-in. ) lowfrequency woofers and each shall have an 8-ohm, 101-mm (4-in. ) diameter voice coil and a 600-watt power rating. The loudspeaker shall have a rigging system enabling a column of loudspeakers to be hinged at their back corners, with relative downward angles set by adjustable rigging straps at the front. The enclosure shall be constructed of 18-mm thick, 13-ply birch plywood, and shall be trapezoidal, forming an 18° wedge and be 596 mm (23. 46 in. ) high, 584 mm (23. 00 in. ) wide at the front, 354 mm (13. 93 in. ) wide at the back and 759 mm (29. 88 in. ) deep, and shall weigh 55. 8 kg (123 lb). The loudspeaker system shall be the Electro-Voice Xcb. Rigging Accessories: Grid: This ATM Fly-WareTM "T"­shaped, all-steel-construction grid was specifically designed as a single column of X-ArrayTM systems. [. . . ] Electro-Voice shall not be liable for any incidental or consequential damages including, without limitation, injury to persons or property or loss of use. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. Other Rights: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Electro-Voice Speakers and Speaker Systems are guaranteed against malfunction due to defects in materials or workmanship for a period of five (5) years from the date of original purchase. [. . . ]